products details

Home Products

CE Certified 3.7V 200mAh Lithium Polymer Battery 502025 for Smart Watch and Wearable Devices

Name: CE Certified 3.7V 200mAh Lithium Polymer Battery 502025 for Smart Watch and Wearable Devices
Brand: Shenzhen Vats Power Source Limited
SKU: 502025
Price: 0.88 USD
Availability: InStock

Brand Name:	VATS Battery or Netural
Model Number:	502025
MOQ:	3
Price:	$0.88-1.28
Delivery Time:	7 work days
Payment Terms:	L/C,D/A,D/P,T/T

Detail Information

Product Description

Ratings & Reviews

Detail Information

Place of Origin:

Guangdong, China

Certification:

CE/FCC

Nominal Voltage:

3.7V

Capacity:

200mAh

Battery Size:

5.0*20*25mm

Weight:

Type:

Li-polymer

Std Discharge Current:

0.2C

Max Discharge Current:

1.0C

Charging Voltage:

4.2V

Discharge Cut-off Voltage:

2.75V

Cycle Life:

500 Times

Anode Material:

LCO

Charging Rate:

Discharge Rate:

Working Temperature Charge:

0~+40℃

Working Temperature Discharge:

-20~+60℃

Supply Ability:

Ships in 7 Work Days (In-Stock) / 30 Work Days (Out-of-Stock)

Highlight:

3.7V 200mAh Lithium Polymer Battery

CE Certified Li-polymer Battery

502025 Size Rechargeable Battery

Product Description

Product Overview

CE certified 3.7V rechargeable lithium polymer battery model HZ502025 with 200mAh capacity, specifically designed for smart watches and wearable devices.

Technical Specifications

Parameter	Specification
Model	HZ502025
Type	Li-polymer battery
Warranty	12 months
Nominal Voltage	3.7V
Capacity	200mAh
Cell Size	5.0×20×25mm
Standard Discharge Current	0.2C
Max Continuous Discharge Current	1.0C
Charging Voltage	4.2V
Discharge Cut-off Voltage	2.75V
Working Temperature	Charge: 0~+40℃, Discharge: -20~+60℃
Certification	CE/FCC

Key Advantages

High energy density lithium polymer battery technology
Extended life cycle for charging and discharging
Enhanced safety with Japan IC & MOS protectors
Free samples available for testing
OEM & ODM services for custom sizes
Easy assembly with mounted connectors (Molex, Tyco compatible)
100% quality inspection before shipment
Multiple models with international certifications
Production capacity: 300,000 units per day
Competitive factory pricing

Packaging Options

Custom packaging available according to your requirements:

Cell only
Pack with PCB and wires
Pack with PCB, wires and connector

Shipping & Delivery

Multiple transportation options available:

HK UPS: 4-6 days delivery
Air Cargo: 7-10 days delivery
Sea Shipment: Approximately 1 month delivery

Production lead time: In stock items ship within 5 working days, out of stock items require 20-25 working days.

Quality Assurance

Why Choose Our Batteries?

30,000㎡ ISO9001:2015 certified factory with advanced automated equipment
Comprehensive quality control system from raw materials to finished products
Professional R&D center supporting specification development and prototyping
Low MOQ with strong production capacity and sufficient stock
International certifications: UL/CE/CB/IEC62133/KC/PSE/ROHS/ERRCS/UN38.3
Responsive customer service with 12-month warranty

Manufacturing Process

Our advanced manufacturing process ensures consistent quality:

Certification Support

We offer comprehensive certification support including CE for European customs, KC for South Korea, and PSE for Japan. Contact us for free battery certification activities.

Frequently Asked Questions

Q: How about the warranty of li-ion batteries?
A: Warranty of li-ion battery can be as long as 1 year.

Q: Do you have current sample in stock?
A: We usually have stock for battery cells, for battery pack need to be assembled according to customer requirements.

Q: Can I have a sample order?
A: Yes, we welcome sample orders for quality testing. Customized solutions and OEM/ODM services available.

Q: What's the delivery time for mass production?
A: Usually 25-30 days, depending on quantity, materials, and battery cell model.

Q: What kind of certificates could you provide?
A: We provide CE, UL, UN38.3 and other international certifications. Certificate fees may apply for custom designs.

Q: What is your quality control process?
A: We follow ISO9001 procedures with 100% inspection before delivery.

Contact Information

Contact: Lynn

Mobile/Skype/Whatsapp: +86 13476615395

Tel: 86-0755-86909458

Web: www.vatsbattery.com

Your inquiry is our best motivation, your success is our business!

Ratings & Review

Overall Rating

5.0

Based on 50 reviews for this supplier

Rating Snapshot

The following is the distribution of all ratings

5 stars

100%

4 stars

3 stars

2 stars

1 stars

All Reviews

Robert T.

United States May 13.2026

Helpful (99)

As a veteran engineer in portable audio and smart hardware R&D, I demand the absolute best in battery electrical performance. We sourced this 103048 3.7V 1500mAh Li-polymer battery for a BT speaker project, and its real-world performance has completely blown us away.

Owen

Canada Apr 7.2026

Helpful (86)

I’ve been using this 357090 3.7V 2500mAh lipo battery for a few weeks now, and I’m really satisfied with it. It is steady-quality rechargeable lithium polymer batteries that perfectly match the rated voltage and capacity. Output efficiency is great, which helps me save a lot of working time. Build quality feels solid too, no weird noises or faults during daily operation. Shipping was fast and the packaging was protective. For small-scale battery production and copying work, this is absolutely a practical and cost-effective pick. I’d definitely recommend it to fellow business partners and will consider reordering in the future.

Harry

United Kingdom Mar 18.2026

Helpful (90)

I bought these 805050 3.7V 2500mAh lithium polymer batteries to replace the old cells in my Bluetooth speakers, and they work brilliantly. Fit is absolutely perfect, no trimming needed at all. The voltage and capacity are spot on, my speakers now hold charge for much longer than before. Power output is stable, sound quality isn’t affected one bit. They’re well-made and feel really durable. Delivery arrived quickly, items were well packed with no damage. Great value for money compared to local stores. I’ve been using them daily for weeks with zero issues. Would absolutely recommend these batteries to anyone needing replacements for wireless speakers. I’ll be coming back to buy more soon!

Tags:

Lithium Polymer Battery

Lithium Polymer Battery Pack

High Discharge Lipo Battery

Ultra Thin Lipo Battery

Round Lipo Battery

Curved Lipo Battery

Li Ion Battery Pack

LiFePO4 Battery Pack

High Temperature Lipo Battery

Custom Lipo Battery